From equal days to extreme daylight shifts, 2026’s solstices and equinoxes mark Earth’s precise seasonal turning points, ...

Spring is almost here — officially, at least. The vernal equinox arrives on Thursday, marking the start of the spring season for the Northern Hemisphere and the fall in the Southern Hemisphere. On the ...

The National Oceanic and Atmospheric Administration's GOES East satellite captured a view of Earth during vernal equinox in 2020. Despite the recent resurgence of winter weather, I can feel how close ...

We often think of the arrival of March as the kickoff of the spring season. And it’s true that the meteorological start of spring, based on the annual temperature cycle, is always March 1. But there’s ...